Fuel saving device for oil heaters



NOV. 26, 1946, Y c sE SAVING DEVICE FOR OIL HEATERS Filed June 18, 1942 INVENTOR. J O!!! Car-lake ATTORIVEY Patented Nov. 26, 1943 UNITED I STATES PATEN OFFICE 1 2.4 1. a i 1 -FUEL SAVING nhvion FOR 011. HEATERS John Carlise, N ew Yo Application June 18, 1942, Serial No.447 538 ,5 Claims.

This invention relates to new and useful improvements in a fuel saving device for oil burners. More particularly, the invention proposes the provision of a heat retaining membersupported within the housing. of an oil burner which has a top vent and a burner at the bottom portiom for the purpose of receiving and holding heat given 01f by the burner and so preventing the rapid passage of heat through the housing. With this construction the burner may be constructed of smaller capacity than heretofore, and yet sufficient heat will be given off to suitably heat a house. It has been found that withthe new construction a one wickburner may be used in place of the ordinary two wick burner now being used.

Furthermore, it has been found that with the new construction less fuel is required. An experiment was made in the room of a small house, of a size 12' x 16 and-9 4" high, and it'was found that with the new construction three gallons of fuel-were required in 24 hours, whilewith the old construction five gallons were required in '23 hours to maintain the room at identical ternperatures. V

Still further the invention proposes a construction of heat retaining member formed of a plurality of laminations which may befslightly sep a rated en des d to in rea th heat d cha of the retaining member when more heat is required. e

F further mp hension of this in ent on. and of the. objects and advantages thereof. reference w ll e ha to th f lowins esc i tions and om a i a n and t v e ap en ed claims in h ch h ari us vnovel iea u e of th invention are more particularlyset forth. I

In the accompanying drawing. grining'a material part of this disclosurev is- 1 i a perspectiv ie o oi jburner having a fuel saving device constructed in ac.- cordance with this invention. e

Fig. 2 is a side view of 1 with portions broken awayto discloseinterior parts. 1 4 N Fig. 3 is a plan view of the burner shown in Fig. 2,.this view being taken looking in the direction of the line 3-3 of Fig.2.

Fig. 4 is a fragmentary enlarged detailed yiew of a portion of Fig. 2.

Fig. 5 is a perspective view of certain pf the parts shown in Fig. 4 with parts being broken away for clarity of illustration;

Fig. 6 is a fragmentary sectional-viewtaken on r I the line 6tof Fig. 4.; 1 v I Fig. '7 is' an enlargdp'artial elevational view 2 looking in the direction of the line 1-1 of Fig. 6.

The fuel saving device for oil burners, in accordance with this invention, is used in combination with an oil burner H1 having a hollow housing H with a top vent l2 and a fuel burner I3 in the bottom portion thereof, and the usual air circulation system not shown. The top vent I2 is provided with the usual utomatic draft regulating swing .gate l2? and adjacent manually operable valves 1-2. one at each side of the draft regulating swing gate l2e, to circulate the heat most effectively. This fuel burner 13 is illustrated having only one circular wick l4, about seven inches in diameter which may burn with a high flame during the day and with a low flame during the night to produce the desired heat. The new device includes a horizontally laminated heat retaining member [5 supported within the housing H above said burner 13 and adapted to to prevent therapid passage of heat through the housing. Y

Heretofore, without the provision of the heat retaining member 15 the heat from the burner would rapidly pass through the hollowhousing and-out of the vent l2.

The heat retaining member comprises a, pinrali-ty of horizontal 'lam'in'ations 16, I1 and' I8 which are supported upon a pair of angle mem- 80 bers l9 attachedon the sides of the housing I l.

Headed studs 2 are mounted on the ends of the angle members Ii] and pass through aligned openings 21 formed in the laminations 16, Hand l8. Springs 22- are coaxial-1y mounted upon the stud 2b and act-between the heads of: the studs and the top lamination for holding the lamination-s downwards in intimate contact with each other. H

A pair of laterally spaced strips mare fixedly attached-by screws 24 to the ends of the top lamination 16. Pins 25 project from thelaminations l1 and 48 and engage in vertical slots26 formed in strips 23. The arrangement is such that laminations it, 1 and 1t, the-pins 25 engaging the bottoms of the slots 2;; ts: control 5 which may engageinone of a plurality of open receive and hold heat given off by the burner the la in ation 156 maybe lifted for slightly 29 extended upwardsand engaged over pulleys" ings 34 formed in the housing I l concentric with the shaft 31 for holding the shaft in various turned positions. A spring 35 acts between one of the pulleys 30 and one side of the housing II for urging the shaft 3| in one direction to maintain the engagement of the peg 33 with one of the openings 34.

The operation of the device is as follows:

Normally, the laminations 16, I1 and I8 are in face contact with each other. The heat from-the burner I3 is readily absorbed and held by these laminations which are constructed of cast iron or other suitable substance. During the use of the oil burner the retained heat will be slowly radiated and will be directed in the usual way to the compass of the room. If it is desired that additional heat be drawn out from the heat retaining member 15 and discharged into the room, it is merely necessary to grip the handwheel 32, pull the hand wheel 32 outwards to disengage the peg 33 from its opening 36, and then turn the shaft 3| for causing the pulley-s 38 to draw up the flexible members 29. This will lift the top lamination It and indirectly lift the second lamination l1 and so separate the laminations from each other. Now more radiating surfaces are exposed to the air currents.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. A fuel saving device, comprising a housing for the passage of heat and having spaced side walls, horizontal support members mounted on said side walls, a laminated heat retaining member rested on said support members, vertical headed studs extending from said support members and slidably extended through complementary openings formed in the layers of said heat retaining member limiting movement of said layers relative to each other to the vertical only, means for lifting the top layer of said heat retaining member, spaced vertically extending strips having their top ends securely attached to opposite sides of the top layer and their free ends projected downwards along opposite sides of the bottom layers of said heat retaining member and formed with spaced vertically extended elongated slots aligned with the edges of said bottom layers,

and pins from said bottom layers engaging said vertical slots, said slots for said bottom layer being slightly longer than the slots for the next layer above, whereby when said top layer is lifted each of said bottom layers will be successively lifted and spaced from each other. I

2. A fuel saving device, comprising a housing for the passage of heat and having spaced side walls, horizontal support members mounted on said side walls, a laminated heat retaining mem ber rested on said support members, vertical headed studs extending from said support members and slidably extended through complementary openings formed in the layers of said heat retaining member limiting movement of said layers relative to each other to the vertical only, means for lifting the top layer of said heat retaining member, spaced vertically extending strips having their top ends securely attached to opposite sides of the top layer and their free ends projected downwards along opposite sides of the bottom layers of said heat retaining member and formed with spaced vertically extended elongated slots aligned with the edges of said bottom layers, and pins from said bottom layers engaging said vertical slots, said slots for said bottom layer being slightly longer than the slots for the next layer above, whereby when said top layer is lifted each of said bottom layers will be successively lifted and spaced from each. other, and expansion springs mounted on said studs and operating be- I tween the heads of said studs and the adjacent faces of the topmost layer of said heat retaining member for urging the layers into facial contact with one another against the action of said lifting means.

3. A fuel saving device, comprising a housing for the passage of heat and having spaced side walls, horizontal support members mounted on said side walls, a laminated heat retaining member rested on said support members, vertical headed studs extending from said support members and slidably extended through complementary openings formed in the layers of said heat retaining member limiting movement of said layers relative to each other to the vertical only, means for lifting the top layer of said heat re taining member, spaced vertically extending strips having their top ends securely attached to opposite sides of the top layer and their free ends projected downwards along opposite sides of the bottom layers of said heat retaining member and formed with spaced vertically extended elongated slots aligned with the edges of said bottom layers, and pins from said bottom layers engaging said vertical slots, said slots for said bottom layer being slightly longer than the slots for the next layer above, whereby-when said top layer is lifted each of said bottom layers will be successively lifted and spaced from each other, said support members comprising angle members having one of their arms securely attached to said side walls and their free arms directed inwards and provided with said studs.

l. A fuel saving device, comprising a housing for the passage of heat and having spaced side walls, horizontal support members mounted on said side walls, a'laminated heat retaining member rested on said support members, vertical headed studs extending from said support members and slidably extended through complementary openings formed in the layers of said heat retaining member limiting movement of said layers relative to each other to the vertical only, means for lifting the top layer of said heat retaining member, spaced vertically extending strips having their top ends securely attached to opposite sides of the top' layer and their free ends projected downwards along opposite sides of the bottom layers of said heat retaining member and formed with spaced vertically extended elongated slots aligned with the edges of said bottom layers, and pins from said bottom layers engaging said vertical slots, said slots for said bottom layer be- 1 ing slightly longer than the slotsfor the next layer above, whereby when said top layer is lifted each of said bottom layers will be successively lifted and spaced from each other, said pins when said layers are in face contact being located within the top ends of said slots to move to the bottom thereof when said layers are lifted for holding the layers with their adjacent faces spaced.

5. A fuel saving device, comprising a housing for the passage of heat and having spaced side walls, horizontal support members mounted on said said heat retaining member and formed with spaced vertically extended elongated slots aligned v with the edges of said bottom layers, and pins from said bottom layers engaging said vertical slots, said slots for said bottom layer being slightly longer than the slots for the next layer above, whereby when said top layer is lifted each of said bottom layers will be successively lifted and spaced from each other, said heat retaining mem- 10 her having its layers formed of cast iron.

J OHN' CARLISE. 

